There are many etiologies of ST segment elevation other than MI. How often do these lead to unwarranted thrombolytic therapy or emergent angiography?

5.7 - 11%.

The most common causes of ST-segment elevation in these patients who received unwarranted thrombolytic therapy or emergency angiography was left ventricular hypertrophy, early repolarization, conduction defects, and ventricular aneurysm from old infarction.